Back measuring and shaping device for bookbinding machines



Jan. 22 1924. 1,481,298

c. F. MGBEE BACK MEASURINGAND SHAPING DEVICE FOR BOOKBINDING MACHINESFiled Dec. 50, 1918 2 Sheets-Sheet 1 jam. 22 1924.

C. F. M BEE BACK MEASURING AND SHAPING DEVICE FOR BOOKBINDING MACHINES1918 2 Sheets-Sheet 2 Filed Dec. 30

Patented den. 22, E924.

enemas a. mars or ATHENS,

on), ASSIGNOR TO THE MOBEE BINDER COMPANY, or ATHENS, 01110. I

imcx mEasus'm-G Ania SHAPING nnvIcE FOR sooxnmnms MACHINES.

App11cation fi1ed December 30, 1918. Serial No. 269,014.

I To (ZZZ whom. it nceM.--.

Be it, known that'I, Cumin-n Ffl-McBnn,

-' alicitizen .of the :United States-,-="residin' at f Athens, in.;.thef-county of :Athens' and tate of Ohio, li-ave inventedF9, certain new anduseful 'Improveu'ient in Back Measurmgand Shaping -Devices forBookbinding Ma'- "chines, of-whi ch the fpllowing is a specifica- Myinvention. relatesjto binding machines adapted to form volumes in. whicha metal back-is employed, and has for its object'to of the same;

, provide-an attachment therefor which. will measure and-shape the backto fit the size of .-'the articular volumeunder construction.

y, -jinvention consists of certain details pointed out in my claims andillhstrated in the accompanying drawings, in which Figure 1 shows afront elevation view of a, binding machine, with my attachment thereon;

Figure '2 shows a vertical sectional view Figure 3 shows a detail viewof a part of my device, a portion of same being broken away to revealworking parts; Figure 4 shows a detail view, in section, taken on theline 4-4, in Figure 3-;

Figures 5 and 6 show detail views, in section of the shaping means, Iemploy;

.Figure 7 shows a detail view, in section, of the measuring means, Iemploy;

Figure 8 shows a detail view of a back which has been measured andsized, and ready to be shaped; and

Figure 9 shows a perspective view of the back. properly shaped and readyfor use in ,forming the volume.

Referring to the accompanying drawings the reference numeral 10 is-usedto indicate the upright standards of a binding machine, in which apressure bar 11, is designed to operate. Secured to, and extendingrearwardly from, the standards on each side of the-machine, is asupporting frame 12, said tween the said depending portion and plate 16.The plate 17 is mounted by bolts 19 secured in-the depending portion andplate 16, which bolts are placed in ver-' tical oblong orificeslS in theplate 17. Each outer end of the plate 17 rests upon an angled slidablebar 20 mounted, as shown, to slideinwardly and outwardly. The upper endof the plate 16 is on a line with the upper edge surface of the bar 14,and also in line with the lower surface of the rotating shaping lever13, when it is resting in normal position, as shown in Figure 2. Each ofthese angled bars 20 is secured to a rod '21 along which it slides whenbeing moved to its proper position. A handle 22 is secured to eachangled bar 20 and handles 23 are secured to the shapinglever 13. Securedto, and extending upwardly from,

means of each sideof the pressure bar 11, is a meas- .uring plate 24,its upper surface being angled, as shown, and the upper, and inner pointthereof being above the horizontal line of the lower. surface of thebars 21. It is obvious that as the pressure bar moves it .carries withit the measuring plates 24,

thus elevating and lowering them. As. the volume to be built must beheld in position during the operation by the pressure bar it is obviousthat the thickness of the volume will determine the exactposition of themeasuring plates.

In practical operation a stock size of back 27 is employed for allvolumes up to a certain given thickness. When the pressure bar is inposition to perform-its function the measuring plates, as before stated,are in a certain definite position. The sliding angle bars 20 are thenpushed inwardly until their lower corners contact the angled surface ofthe measuring plates, the bars obviously controlling the position oftheplate 17. The shaplng of these bars 20 is carefully determined fromexact measureinents, so that the angle of the bar on the surfaceextending outwardly from its apex will function properly, as hereinafterset forth. As the pressure bar 11 is set against the papers andcovers-to form the volume the plates 24 aredefinitely positioned. The

angled upper ends of these plates 24 are designed to form stops fortheir respective frames 12. It is obvious that as the upper surface ofthe bars 20 are angled and as these angled ends contact the undersurface ticular volume under construction.

of the movable plate 17, the relative position of the late 17 within itssupporting plates 15 and 16 will be determined by the position of theplates 24. Thus, if the volume under construction is narrow the movableplate 17 will be in a lower position within its supporting plates, thanif the volume under construction were thicker. This relative arrangementof parts (the angle of the bevel on the plates 24 and theirpositionin'g, and the angle and positioning of the bars 20) isconsidered in the construction of the machine, so that in the volumesunder construction the upper edge of the plate 17 will be in the rightposition, so that by inserting the end of one of these stock metal backs27 in the space between the plates 15 and 16 until the end of the metalback contacts the upper end of the plate 17, the shaping lever 13 may beoperated and the metal turned back upon itself. The opposite edge of thestock metal back is then inserted in the same way and bent back uponitself, and these bent back portions constitute the metal in the stockback which is not necessary or desirable for use in forming the par- Inother words, this metal may be considered as excess metal and myarrangement provides for disposing of the same. In the drawing, Figure 5illustrates how the metal back is placed as hereinbefore described andhow the shaping lever operates to turn it under,

' and Figure 6, illustrates how I then take the metal back out of thespace between plates 15 and 16,. place it on the outer surface of theplate 16 and force the shaping lever down upon it, so as to bend themetal completely upon itself.

The angled bars are then pulled out wardly (obviously moving the plate17) to their limit of movement, which ismechanically. determined by thelugs 25 engaging the lugs 26, as shown in Figure 4. The angle of thebars 20, inward from the apex thereof, is predetermined sothat when thebars are at their outwardlim'it of movement the plate 17 will be ina'proper relative position that when the measured back 27 is insertedbetween the plate 16 and the bar 14 and the shaping lever rotated, as

illustrated in the dotted lines in Figure 7, the desired fian' e will beturned at a right angle. The other edge of the measured back 27 is thentreated in the same manner, and a U shaped back of an exact size to fitthe volume under construction is formed, as shown in Figure 9.

Having thus described my invention what I claim and desire to secure byLetters Patent of the United States is:

1. In a book binding machine having a pressure bar to retain the sheetsin position, an attachment for measuring and shaping the back to be usedin forming the volume, comprising a carrying frame with a movable plate;means for positioning the movable plate to measure the flanges to beformed on the back, and means to form the said flanges, substantially asshown and described.

2. In a book binding machine wherein stock sized metal backs are used informing the volume, a measuring and shaping device comprising astationary portion and a movable plate mounted therein; a shaping leverrotatably mounted; a pressure bar; means connected with the pressure barand the movable plate for positioning the plate by the movement of thepressure bar, substantially as shown and described.

In a book binding machine in which stock sizes of metal backs are usedin forming volumes of varying thickness, a pressure bar; a movableplate; means connected with the pressure bar and the movable plate forpositioning the movable plate in proportion to the movement of thepressure bar, the construction being such that the positioning of theplate by the movement of the pressure bar will determine the distance ametal back may be thrust intothe measur ing and shaping device,substantially as shown and described.

4. In a book binding machine in which stock sizes of metal backs areused in forming volumes of varyin'g thickness, a measuring and shapingdevice provided with a slot to receive the edges of the metal backs forshapingya plate movably mounted in said'slot; means connecting thepressure bar of the binding machine and the'movable plate wherebythemovement of the pressure bar determines the position of the plate in theslot a shaping lever-rotata-bly mounted, substantially as shown'anddescribed.

foregoing specification.

CHARLES F. MoBEE. Vitnesses L. D. VARE, H. R. RAMSEY.

In testimony whereof have signed the

